Use function name rpl_vasnprintf if vasnprintf already exists.

diff --git a/ChangeLog b/ChangeLog
index 0088e7c..94f1a55 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,6 +15,8 @@
        * lib/vasnprintf.c: Include isnan.h, isnanl.h, printf-frexp.h,
        printf-frexpl.h.
        (VASNPRINTF): Handle the 'a' and 'A' directives here, if needed.
+       * lib/vasnprintf.h (asnprintf, vasnprintf): Rename if
+       REPLACE_VASNPRINTF is defined.
        * m4/vasnprintf.m4 (gl_REPLACE_VASNPRINTF): New macro, extracted from
        gl_FUNC_VASNPRINTF.
        (gl_FUNC_VASNPRINTF): Invoke it.

diff --git a/lib/vasnprintf.h b/lib/vasnprintf.h
index 894008c..393a7c8 100644 (file)
--- a/lib/vasnprintf.h
+++ b/lib/vasnprintf.h
@@ -1,5 +1,5 @@
 /* vsprintf with automatic memory allocation.
-   Copyright (C) 2002-2004 Free Software Foundation, Inc.
+   Copyright (C) 2002-2004, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -65,6 +65,10 @@ extern "C" {
                 free (output);
             }
   */
+#if REPLACE_VASNPRINTF
+# define asnprintf rpl_asnprintf
+# define vasnprintf rpl_vasnprintf
+#endif
 extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
        __attribute__ ((__format__ (__printf__, 3, 4)));
 extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args)

diff --git a/m4/vasnprintf-posix.m4 b/m4/vasnprintf-posix.m4
index 8556794..fd88860 100644 (file)
--- a/m4/vasnprintf-posix.m4
+++ b/m4/vasnprintf-posix.m4
@@ -19,6 +19,10 @@ AC_DEFUN([gl_FUNC_VASNPRINTF_POSIX],
      && test $ac_cv_func_vasnprintf = yes; then
     : # vasnprintf exists and is already POSIX compliant.
   else
+    if test $ac_cv_func_vasnprintf = yes; then
+      AC_DEFINE([REPLACE_VASNPRINTF], 1,
+        [Define if vasnprintf exists but is overridden by gnulib.])
+    fi
     if ! expr "$gl_cv_func_printf_directive_a" : ".*yes" > /dev/null; then
       AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], 1,
         [Define if the vasnprintf implementation needs special code for